Cho phản ứng: KHC2O4+ KMnO4+ H2SO4=CO2+ MnSO4+ K2SO4+ H2O. Tổng số nguyên tối giản trước các ion khi cân bằng theo phương pháp thăng bằng ion –electron là bao nhiêu

Which of the following mining methods disrupts the sea floor?

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .